EP0131245B1 - Closing and locking device for a collector pivotally mounted on a tractor - Google Patents

Closing and locking device for a collector pivotally mounted on a tractor Download PDF

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Publication number
EP0131245B1
EP0131245B1 EP84107732A EP84107732A EP0131245B1 EP 0131245 B1 EP0131245 B1 EP 0131245B1 EP 84107732 A EP84107732 A EP 84107732A EP 84107732 A EP84107732 A EP 84107732A EP 0131245 B1 EP0131245 B1 EP 0131245B1
Authority
EP
European Patent Office
Prior art keywords
collecting container
locking
linkage
flap
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84107732A
Other languages
German (de)
French (fr)
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EP0131245A1 (en
Inventor
Roger David Reilly
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deere and Co
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Deere and Co
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Filing date
Publication date
Application filed by Deere and Co filed Critical Deere and Co
Publication of EP0131245A1 publication Critical patent/EP0131245A1/en
Application granted granted Critical
Publication of EP0131245B1 publication Critical patent/EP0131245B1/en
Expired legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D43/00—Mowers combined with apparatus performing additional operations while mowing
    • A01D43/06—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material
    • A01D43/063—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material in or into a container carried by the mower; Containers therefor
    • A01D43/0635—Mowers combined with apparatus performing additional operations while mowing with means for collecting, gathering or loading mown material in or into a container carried by the mower; Containers therefor with emptying means
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D2101/00—Lawn-mowers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis

Definitions

  • the invention relates to a locking and locking device for a collecting container which can be connected to a tractor and which has on its rear side a flap which can be pivoted about an axis arranged in its upper region between a closed position and an open position, by means of an adjusting device arranged on the collecting container actuatable first locking device is stable in the closed position, the collecting container being fixable in its receiving position by means of a second locking device and pivotably mounted on a frame on its underside.
  • a collecting container for a garden tractor is already known (US-A-4 015 406), which is pivotably mounted on a frame provided on the garden tractor and for this purpose is articulated to the frame in the region of its upper edge.
  • the collecting container consists of an approximately rectangular box with an outlet opening through which the crop can be dispensed. In the harvesting position, the collecting container is closed and lies against the back of the frame provided on the garden tractor.
  • a lever arm is provided on the collecting container for pivoting from its harvesting material receiving position into an emptying position, by means of which the collecting container can be pivoted upwards in order to open the outlet opening and empty the harvested material to the ground.
  • the collecting container is pivotably mounted on a uniaxial chassis by means of a handlebar and is thus pivotable between a receiving position and an emptying position.
  • the front end of the collecting container is secured by means of an elaborate locking mechanism which can be released via a traction cable device and unlocks the collecting container when actuated, so that it can pivot into an emptying position.
  • the collecting container is arranged in such a way that the center of gravity lies behind the axis of rotation of the collecting container, so that it can pivot backwards due to its own weight.
  • the flap normally closing the collecting container is pivoted upwards, which is connected to a linkage arrangement for this purpose.
  • a linkage arrangement for this purpose.
  • the flap is additionally pivoted into a final position via a tension spring.
  • the separately operated locking devices are very expensive due to the many individual parts and the complex kinematics.
  • the collecting container is arranged such that it can be tilted on a trailer, the tilting taking place via a hydraulic cylinder.
  • the flap that closes the collection container in its operating position is opened automatically by means of a cable and a swivel linkage.
  • This document also discloses a non-tilting collection container on a trailer, the lockable flap of which can be opened by the towing vehicle via a hand lever.
  • the collecting container has an inclined bottom wall so that the material can slip out of the collecting container when the flap is open.
  • this document also shows a collecting container which is mounted on a small transporter, with designs for emptying or unlocking not being made.
  • the invention has for its object to design and arrange the locking and locking device in such a way that it can be used once for pivoting the collecting container and at the same time can be used for the joint actuation of the two locking devices for the flap and the collecting container.
  • the actuating device is designed as a lever pivotably mounted on the collecting container, which lever serves for pivoting the collecting container and at the same time via linkage with a pawl pivotably mounted on the collecting container for locking the collecting container in the crop receiving position and with a locking part designed as a locking tab for Fixing the flap is also connected in the crop receiving position.
  • the locking and locking device can be used to pivot the collecting container and also to actuate the Insert both locking devices. Due to the advantageous storage of the collecting container, it can easily be tilted downwards by simply pushing it backwards. This will simultaneously the locking device for the flap is released, and the flap pivots due to its own weight to the rear while maintaining its vertical position while the collecting container assumes an inclined position.
  • an inexpensive adjusting device can be obtained with which three functions can be performed. Since the adjusting device is designed as a lever, both locking devices can be actuated with little effort.
  • the flap automatically moves into its closed position only as a result of its own weight and completely closes the opening of the collection container.
  • the catch and the locking tab can then be pivoted back into their locking position without further ado in the receiving position of the collecting container and thus fix the collecting container and the flap in this position.
  • the device can have a frame which is arranged on a tractor in a self-supporting manner, the pawl can be brought into engagement with a tab on the frame, and the locking tab can be adjusted together with the pawl in at least two positions, one of which the locking tab is held in the closed position and in the other a pivoting of the flap into the open position is possible, the flap being lockable in the area of its lower edge via the locking tab.
  • the lever is movably connected to the pawl via a play connection and is articulated via a linkage received in the guide elements below the collecting container to the locking device, which is held in the closed position by a spring that can be tensioned via the lever.
  • the collecting container can also be locked in its operating position when there is still material between the flap and the container walls, the flap being pulled over the springs in the direction of its closed position.
  • the collecting container is pivotally mounted on the frame projecting backwards from the tractor in such a way that the center of mass of the collecting container in the harvested goods receiving position lies between the articulation point of the collecting container on the frame and the rear of the tractor, the collecting container is held in its harvested goods receiving position, even if the collection container has not yet been locked. Since the vertical distance from the center of mass of the collecting container to the articulation point of the collecting container on the frame is relatively small, a small amount of force is sufficient to pivot the collecting container backwards and thus to bring the center of mass of the collecting container behind the articulation point. As a result, the operator can very easily adjust the collecting container even when it is full, since after a short travel the weight of the collecting container acts as a lever arm with reference to the articulation point of the collecting container and pulls the collecting container backwards.
  • the upper end of a vertically extending rod engages the lever connected to the collecting container in its upper region, which has in its lower region a guide pin which is slidably received in an elongated opening in the pawl, whereby the lower end of the linkage is connected to the linkage running horizontally below the collecting container. This ensures that the flap is already unlocked when the collection container is still locked in the operating position.
  • the lower end of the linkage engages on a lever linkage mounted on the collecting container, which has a hinge pin which is slidably received in a longitudinal slot in the horizontally extending linkage, the locking device having angled legs that end with the horizontally extending linkage are articulated and at the other end they engage the locking tab.
  • the flap can be locked and unlocked in a simple manner depending on the movement of the linkage if at least one guide element is arranged below the bottom of the collecting container, on which the front part of the legs of the locking device connected to the horizontal linkage is guided in this way that that in the locking position of the flap the other part of the legs of the locking device can be pivoted to the underside of the collecting container and the locking tab can be brought into contact with the flap.
  • the guide element guides the angled legs in such a way that when the linkage moves backwards, the legs with the locking tab fold back and down about their articulation point and thereby release the flap.
  • an attenuator is arranged between the frame and the collecting container.
  • the pawl can expediently have a hook which is open at the top and which can be snapped into the tab provided on the frame.
  • 10 denotes a tractor for lawn care, which is equipped with a cutting device 12 and a frame 14, which is detachably connected to the rear of the tractor and has a collecting container 16.
  • the frame 14 has an upper and a lower cross member 18 and 20, which are connected to each other by vertically extending right and left and a middle support 22, 24 and 26.
  • Upper and lower tabs are connected or welded to the end faces of the supports 24 and 26, the tabs pointing forward in the direction of travel being releasably connected to the rear of the tractor via coupling bolts.
  • a rearward, self-supporting, angular strut 36 is connected at its lower end to the support 24 and the lower cross member 20 and receives a bush 38 at its free or rear end.
  • a second cantilevered strut 40 runs parallel to the strut 38 and consists of a shaped or bent plate with a trapezoidal and vertically extending part 42 which ends at the front in a vertically extending flange 44 which is connected to the left support 24 by means of screw bolts is.
  • a backward sloping flange 46 is connected to the upper edge of part 42 and extends approximately to the rear end of strut 40.
  • Another flange 47 extends rearward and upward and is connected to the lower edge of part 42.
  • the flange 47 has at its lower end a vertically running flange part which is connected to the cross member 20 by means of a screw bolt.
  • a second socket 48 is connected to the rear end of the part 42 and extends coaxially to the socket 38.
  • a tab 50 for fixing the collecting container 16 consists of a U-shaped rod, with its legs on the underside of the cross member 18 between the carrier 24 and 26 is connected, the upwardly inclined parts of the legs being connected to one another via
  • the collecting container 16 consists of a housing part 52 made of plastic material and is formed from a front side 54, an upper wall 56, a bottom 58 and right and left side walls 60 and 62.
  • the upper wall, the bottom and the opposite side walls together form an opening 64 at the rear of the collecting container 16.
  • the opening 64 is closed by a vertically extending flap 70 pivotally connected to the collecting container 16, which is connected to the upper wall via hinges (not shown in the drawing) and from a position closing the collecting container 16 (FIG. 1) into an opening releasing position (see dashed lines in Fig. 1) is pivotable.
  • Each holder 72 and 74 consists of a channel part which is formed from two vertically extending flanges 76 which, as can be seen from FIG. 3, are triangular in side view, and from a web part which is flat against the underside of the bottom 58 of the collecting container 16 is present.
  • An approximately vertically extending holder 78 (see FIGS. 3 and 4) is connected to each web part of the two flanges 76 and is fastened with a wall part 80 in a recess 81, which is provided in the lower front area of the front side 54 of the collecting container 16 .
  • flanges 76 mutually aligned bores are provided, which are provided somewhat behind the vertical plane that runs through the center of mass of the collecting container 16 when the latter is in a vertical position according to FIG. 3.
  • the struts 36 and 40 are located outside of the brackets 72 and 74, and a linkage or axis 82 is received in the corresponding bores provided in the brackets 72 and 74 and in the bushings 38 and 48, which on the struts 36 and 40 are arranged.
  • the collecting container 16 can thus be pivoted, for example, from the position according to FIG. 3 into a position according to FIG. 4, in which the crop can pass through the opening 64.
  • the collecting container 16 is filled via a blower 83 which is provided at the right end of the frame 14 and whose inlet opening is connected to the outlet of a conveying channel 84 which is connected to the housing of the cutting device 12.
  • An outlet duct 86 communicates via an upper elbow 87 with an inlet opening 85 provided in the upper part of the collecting container 16.
  • the inlet opening 85 is designed and arranged such that the collecting container 16 pivots into the emptying position shown in dashed lines can be without impairment of the individual channels of the blower 83 occurs.
  • An annular seal 88 for example made of soft rubber, is provided on the outlet channel 86, so that the outlet channel can be properly sealed off from the inlet opening 85.
  • a bracket 89 is inserted into the upper end of the right bracket 22 of the frame 14, and to the upper end of the bracket 89, the rear end of the elbow 87 of the outlet duct 86 is connected so that it is additionally supported.
  • the fan 83 is driven by a drive device of the tractor 10, not shown in the drawing. The same also applies to the cutter body of the cutter device 12, via which the crop is separated and fed to the collecting container 16 via the blower 83.
  • a locking device 90 is used to hold the collecting container 16 in its filling position and to close the flap 70 in its position according to FIG. 3 (closed position).
  • the locking device 90 has upper and lower brackets 91 and 92, which are connected with their legs to an outer side 93 of an indentation 94 in the collecting container 16.
  • the indentation 94 extends vertically between the upper wall 56 and the recess 81, which is also provided on the front wall of the collecting container 16.
  • the indentation 94 serves to receive the locking device 90 and has the advantage of mounting the collecting container 16 closer to the tractor 10, so that the weight of the collecting container with respect to the tractor 10 is shifted more forward and thus corresponding counterweights on the front side of the Can be avoided or kept to a minimum.
  • the upper bracket 91 is located approximately at the shoulder height of an average-sized operator when he has taken a seat on the tractor 10 and has a two-armed lever 95 which is connected to the bracket 91 by means of a hinge pin 96. At the outer free end of one lever arm of the lever 95 there is a laterally protruding actuating device 98, and the other lever arm extends in the direction of the indentation 94.
  • a linkage 100 is connected to the outer end of the other lever arm of the lever 95, for this purpose its upper end is provided with a right-angled end 102 which hinges on the lever 95.
  • a pawl 104 is connected to the lower bracket 92 in an articulated manner by means of a bolt 106 and has an upwardly open hook 108 which can be snapped into the opening of the tab 50 and for this purpose can be adjusted accordingly via the linkage 100.
  • a drop-shaped opening 110 is provided in the pawl 104, which is part of a play connection and serves to receive a guide bolt 112 connected to the linkage 100. If the lever 95 is in its locking position shown in FIG. 3, the guide pin 112 is located at the upper end of the opening 110.
  • the pawl 104 is pretensioned clockwise by a spring 114.
  • the linkage 100 extends downwards over the guide pin 112 and has a connecting eye 116 which is screwed onto the lower end of the linkage 100 and is articulated via a hinge pin 118 to a lever arm 120 which is connected to an axis 122, the axis of which both ends are received in sockets 124 and 126.
  • the bushings 124 and 126 are received in forwardly extending brackets 128 and 130 which are connected at their rear ends to the brackets 78.
  • axially aligned levers 132 and 134 are arranged on the end 122, which are connected to corresponding linkages 136 and 138.
  • each linkage 136 and 138 lies within the legs of the brackets 72 and 74 which form a housing channel.
  • the front end of each linkage 136 and 138 has a longitudinal slot 140 which serves to receive a hinge pin 144 and which the linkages 136 and 138 connects to the corresponding levers 132 and 134.
  • a U-shaped locking device 148 consists of a rod with right and left legs 150 and 152, which have angled ends 154 and 156 at the front (FIG. 5), which are connected in an articulated manner to the rods 136 and 138.
  • the legs 150 and 152 rest on guide elements 158 and 160, which consist of relatively short supports welded onto the lower edges of the flanges 76 and lie behind the axis 82.
  • the legs 150 and 152 are bent at 162 and 164 immediately in front of the guide elements 158 and 160 (see FIG. 4) when the lever 95 assumes the position shown in solid lines in FIG. 3, so that the legs of the locking device 148 extend from their front ends backwards and downwards to the points 162, 164 and from there in the horizontal direction to a locking tab 168 which bears against the rear 170 of the flap 70, the contact point being located somewhat above the legs of the locking device 148.
  • a spring 172, 174 is located on each side of the linkage 136 and 138 and is connected at one end to the respective end 154, 156 and at the other end to the corresponding hinge pin 144, which is received in the longitudinal slot 140 designed as a play connection.
  • the linkages 136 and 138 and the locking device 148 are pulled forward and the flap 70 is held in its closed position.
  • the longitudinal slots 140 allow the flap to be locked even if there is still some crop in the gap should be between the rear of the collection container 16 and the flap 70, which prevents the flap from being completely closed.
  • the lever 95 must be pivoted from its locking position into an unlocking position (see FIG. 4).
  • the linkage 100 is moved downward and the axis 122 is pivoted in the counterclockwise direction (with reference to FIG. 4).
  • the initial downward movement of the linkage 100 does not hinder the pawl 104 because the guide pin 112 is between the upper and lower limits of the opening 110.
  • the rotation of the axis 122 in the counterclockwise direction causes the linkages 136 and 138 and the locking device 148 to be moved rearward via the hinge pins 144.
  • the legs 150 and 152 are moved downward and rearward via the guide elements 158 and 160, and the locking tab 168 is also moved downward and rearward, thus releasing the flap 70.
  • the guide pin 112 comes to bear against the lower limit of the opening 110 and thereby pivots the pawl 104 in the counterclockwise direction about the pin 106. At this moment the Pull the actuator 98 forward so that the hook 108 easily exits the tab 50.
  • an attenuator 176 for example a hydraulic cylinder, is provided, which at one end via a hinge pin 178 to the part 42 and at the other end is connected to the bracket 74 via a hinge pin 180.

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  • Environmental Sciences (AREA)
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Description

Die Erfindung bezieht sich auf eine Schließ-und Feststellvorrichtung für einen mit einem Schlepper verbindbaren Sammelbehälter, der an seiner Rückseite eine um eine in seinem oberen Bereich angeordnete Achse zwischen einer Schließstellung und einer Offenstellung schwenkbare Klappe aufweist, die durch eine mittels einer am Sammelbehälter angeordneten Stellvorrichtung betätigbare erste Verriegelungsvorrichtung in Schließstellung haltbar ist, wobei der Sammelbehälter mittels einer zweiten Verriegelungsvorrichtung in seiner Aufnahmestellung festsetzbar und an seiner Unterseite an einem Rahmen schwenkbar gelagert ist.The invention relates to a locking and locking device for a collecting container which can be connected to a tractor and which has on its rear side a flap which can be pivoted about an axis arranged in its upper region between a closed position and an open position, by means of an adjusting device arranged on the collecting container actuatable first locking device is stable in the closed position, the collecting container being fixable in its receiving position by means of a second locking device and pivotably mounted on a frame on its underside.

Es ist bereits ein Sammelbehälter für einen Gartenschlepper bekannt (US-A-4 015 406), der an einem am Gartenschlepper vorgesehenen Rahmen schwenkbar gelagert ist und hierzu im Bereich seiner Oberkante an den Rahmen angelenkt ist. Der Sammelbehälter besteht aus einem in etwa rechteckförmigen Kasten mit einer Auslaßöffnung, über die das Erntegut abgegeben werden kann. In der Erntegutaufnahmestellung ist der Sammelbehälter verschlossen und liegt hierzu gegen die Rückseite des am Gartenschlepper vorgesehenen Rahmens an. Zur Verschwenkung von seiner Erntegutaufnahmestellung in eine Entleerungsstellung ist am Sammelbehälter ein Hebelarm vorgesehen, über den der Sammelbehälter nach oben geschwenkt werden kann, um auf diese Weise die Auslaßöffnung freizugeben und das Erntegut zum Boden zu entleeren. Um den Sammelbehälter in seine Entleerungsposition zu verschwenken, muß das gesamte Gewicht des Sammelbehälters und in der Anfangsphase auch ein Teil des im Sammelbehälter aufgenommenen Erntegutes über den Hebel verschwenkt werden, so daß ein relativ großer Kraftaufwand erforderlich ist. Dadurch kann auch eine bestimmte Größe des Sammelbehälters zur Aufnahme des Erntegutes nicht überschritten werden.A collecting container for a garden tractor is already known (US-A-4 015 406), which is pivotably mounted on a frame provided on the garden tractor and for this purpose is articulated to the frame in the region of its upper edge. The collecting container consists of an approximately rectangular box with an outlet opening through which the crop can be dispensed. In the harvesting position, the collecting container is closed and lies against the back of the frame provided on the garden tractor. A lever arm is provided on the collecting container for pivoting from its harvesting material receiving position into an emptying position, by means of which the collecting container can be pivoted upwards in order to open the outlet opening and empty the harvested material to the ground. In order to pivot the collection container into its emptying position, the entire weight of the collection container and, in the initial phase, also a part of the crop picked up in the collection container must be pivoted via the lever, so that a relatively large amount of force is required. As a result, a certain size of the collecting container for receiving the harvested crop cannot be exceeded.

Bei einer bekannten Verriegelungsvorrichtung für einen Sammelbehälter an einem Mähdrescher (US-A-3 317 064) ist der Sammelbehälter auf einem einachsigen Fahrgestell mittels eines Lenkers schwenkbar gelagert und somit zwischen einer Aufnahmestellung und einer Entleerungsstellung verschwenkbar. In der Aufnahmestellung wird das vordere Ende des Sammelbehälters mittels eines aufwendigen Verriegelungsmechanismusses gesichert, der über eine Zugseileinrichtung lösbar ist und bei Betätigung den Sammelbehälter entriegelt, so daß dieser in eine Entleerungsstellung verschwenken kann. Der Sammelbehälter ist hierzu so angeordnet, daß der Schwerpunkt hinter der Drehachse des Sammelbehälters liegt, so daß er infolge seines Eigengewichtes nach hinten schwenken kann. Durch den Druck des austretenden Erntegutes wird die den Sammelbehälter normalerweise verschließende Klappe nach oben geschwenkt, die hierzu an einer Gestängeanordnung angeschlossen ist. Bei Erreichen einer bestimmten Höhe der Klappe wird diese zusätzlich über eine Zugfeder in eine Endlagestellung verschwenkt. Die getrennt zu betätigenden Verriegelungseinrichtungen sind aufgrund der vielen Einzelteile und der aufwendigen Kinematik sehr teuer.In a known locking device for a collecting container on a combine harvester (US-A-3 317 064), the collecting container is pivotably mounted on a uniaxial chassis by means of a handlebar and is thus pivotable between a receiving position and an emptying position. In the receiving position, the front end of the collecting container is secured by means of an elaborate locking mechanism which can be released via a traction cable device and unlocks the collecting container when actuated, so that it can pivot into an emptying position. For this purpose, the collecting container is arranged in such a way that the center of gravity lies behind the axis of rotation of the collecting container, so that it can pivot backwards due to its own weight. Due to the pressure of the emerging crop, the flap normally closing the collecting container is pivoted upwards, which is connected to a linkage arrangement for this purpose. When a certain height of the flap is reached, it is additionally pivoted into a final position via a tension spring. The separately operated locking devices are very expensive due to the many individual parts and the complex kinematics.

Bei der Schließ- und Feststellvorrichtung (EP-Al-0 016 440), von der die Erfindung ausgeht, ist der Sammelbehälter auf einem Anhänger kippbar angeordnet, wobei das Abkippen über einen Hydraulikzylinder erfolgt. Über einen Seilzug und ein Schwenkgestänge wird beim Abkippen die den Sammelbehälter in seiner Betriebsstellung verschließende Klappe automatisch geöffnet.In the locking and locking device (EP-Al-0 016 440) from which the invention is based, the collecting container is arranged such that it can be tilted on a trailer, the tilting taking place via a hydraulic cylinder. The flap that closes the collection container in its operating position is opened automatically by means of a cable and a swivel linkage.

Obwohl nicht beschrieben, ist anzunehmen, daß die Klappe in ihrer Schließstellung verriegelbar ist. Diese Verriegelung dürfte jedoch nicht mit dem Mechanismus zum Verschwenken der Klappe in Wirkverbindung stehen und müßte vor dem Betätigen des Hydraulikzylinders manuell gelöst werden. Dieses Dokument offenbart außerdem einen nicht kippbaren Sammelbehälter auf einem Anhänger, dessen verriegelbare Klappe über einen Handhebel vom Zugfahrzeug geöffnet werden kann. Der Sammelbehälter weist eine geneigte Bodenwand auf, so daß das Gut aus dem Sammelbehälter bei geöffneter Klappe herausrutschen kann. Ferner ist in diesem Dokument noch ein auf einem Kleintransporter aufgesattelter Sammelbehälter gezeigt, wobei Ausführungen zum Entleeren oder Entriegeln nicht gemacht sind.Although not described, it can be assumed that the flap can be locked in its closed position. However, this locking should not be in operative connection with the mechanism for pivoting the flap and would have to be released manually before actuating the hydraulic cylinder. This document also discloses a non-tilting collection container on a trailer, the lockable flap of which can be opened by the towing vehicle via a hand lever. The collecting container has an inclined bottom wall so that the material can slip out of the collecting container when the flap is open. Furthermore, this document also shows a collecting container which is mounted on a small transporter, with designs for emptying or unlocking not being made.

Der Erfindung liegt die Aufgabe zugrunde, die Schließ- und Feststellvorrichtung derart auszubilden und anzuordnen, daß sie einmal zur Verschwenkung des Sammelbehälters eingesetzt und gleichzeitig zur gemeinsamen Betätigung der beiden Verriegelungsvorrichtungen für die Klappe und den Sammelbehälter benutzt werden kann. Diese Aufgabe ist dadurch gelöst, daß die Stellvorrichtung als am Sammelbehälter schwenkbar gelagerter Hebel ausgebildet ist, der zur Verschwenkung des Sammelbehälters dient und gleichzeitig über Gestänge mit einer am Sammelbehälter schwenkbar gelagerten Klinke zum Arretieren des Sammelbehälters in der Erntegutaufnahmestellung und mit einem als Verriegelungslasche ausgebildeten Schließteil zum Festsetzen der Klappe ebenfalls in der Erntegutaufnahmestellung verbunden ist. Da die Klappe an der Rückseite des Sammelbehälters, und zwar im oberen Bereich, angelenkt ist und der Sammelbehälter an seiner Unterseite am Rahmen des Schleppers schwenkbar lagert, läßt sich die Schließ- und Fest-Stellvorrichtung gleichzeitig zur Verschwenkung des Sammelbehälters nutzen und auch zur Betätigung der beiden Verriegelungsvorrichtungen einsetzen. Durch die vorteilhafte Lagerung des Sammelbehälters läßt sich dieser ohne weiteres bodenwärts kippen, indem er lediglich nach hinten gedrückt wird. Hierdurch wird gleichzeitig die Verriegelungsvorrichtung für die Klappe gelöst, und die Klappe schwenkt infolge ihres Eigengewichtes nach hinten und behält dabei ihre vertikale Lage bei, während der Sammelbehälter eine geneigt verlaufende Position einnimmt. Somit erhält man mit wenigen baulichen Mitteln eine kostengünstige Stellvorrichtung, mit der drei Funktionen erfüllt werden können. Da die Stellvorrichtung als Hebel ausgebildet ist, lassen sich mit geringem Kraftaufwand beide Verriegelungsvorrichtungen betätigen. Hinzu kommt, daß beim Zurückschwenken des Sammelbehälters die Klappe lediglich infolge ihres Eigengewichtes automatisch in ihre Schließstellung gelangt und die Öffnung des Sammelbehälters wieder vollständig verschließt. Durch den Hebel lassen sich dann in der Aufnahmestellung des Sammelbehälters die Klinke und die Verriegelungslasche ohne weiteres in ihre Arretierungsstellung zurück verschwenken und somit den Sammelbehälter und die Klappe in dieser Stellung festlegen.The invention has for its object to design and arrange the locking and locking device in such a way that it can be used once for pivoting the collecting container and at the same time can be used for the joint actuation of the two locking devices for the flap and the collecting container. This object is achieved in that the actuating device is designed as a lever pivotably mounted on the collecting container, which lever serves for pivoting the collecting container and at the same time via linkage with a pawl pivotably mounted on the collecting container for locking the collecting container in the crop receiving position and with a locking part designed as a locking tab for Fixing the flap is also connected in the crop receiving position. Since the flap is articulated on the back of the collecting container, namely in the upper area, and the collecting container is pivotably supported on the underside of the frame of the tractor, the locking and locking device can be used to pivot the collecting container and also to actuate the Insert both locking devices. Due to the advantageous storage of the collecting container, it can easily be tilted downwards by simply pushing it backwards. This will simultaneously the locking device for the flap is released, and the flap pivots due to its own weight to the rear while maintaining its vertical position while the collecting container assumes an inclined position. Thus, with a few structural means, an inexpensive adjusting device can be obtained with which three functions can be performed. Since the adjusting device is designed as a lever, both locking devices can be actuated with little effort. In addition, when the collection container is pivoted back, the flap automatically moves into its closed position only as a result of its own weight and completely closes the opening of the collection container. By means of the lever, the catch and the locking tab can then be pivoted back into their locking position without further ado in the receiving position of the collecting container and thus fix the collecting container and the flap in this position.

Nach einem weiteren Vorschlag der Erfindung kann die Vorrichtung einen Rahmen aufweisen, der an einem Schlepper freitragend angeordnet ist, die Klinke mit einer Lasche am Rahmen in Eingriff bringbar sein und die Verriegelungslasche gemeinsam mit der Klinke in mindestens zwei Stellungen verstellbar sein, wobei in der einen die Verriegelungslasche in der Schließstellung gehalten wird und in der anderen eine Verschwenkung der Klappe in die Offenstellung möglich ist, wobei die Klappe im Bereich ihrer unteren Kante über die Verriegelungslasche arretierbar ist.According to a further proposal of the invention, the device can have a frame which is arranged on a tractor in a self-supporting manner, the pawl can be brought into engagement with a tab on the frame, and the locking tab can be adjusted together with the pawl in at least two positions, one of which the locking tab is held in the closed position and in the other a pivoting of the flap into the open position is possible, the flap being lockable in the area of its lower edge via the locking tab.

Vorteilhaft ist es ferner, daß der Hebel über eine Spielverbindung mit der Klinke beweglich verbunden ist und über ein unterhalb des Sammelbehälters in Führungselementen aufgenommenes Gestänge mit der Verriegelungsvorrichtung gelenkig verbunden ist, die über eine über den Hebel spannbare Feder in Schließstellung gehalten wird. Auf diese Weise kann der Sammelbehälter auch dann in seiner Betriebsstellung verriegelt werden, wenn sich zwischen Klappe und Behälterwänden noch festgesetztes Gut befindet, wobei die Klappe über die Federn in Richtung auf ihre Schließstellung gezogen wird. Dadurch, daß der Sammelbehälter an dem vom Schlepper nach rückwärts ragenden Rahmen derart schwenkbar gelagert ist, daß der Massenmittelpunkt des Sammelbehälters in der Erntegutaufnahmestellung zwischen der Anlenkstelle des Sammelbehälters am Rahmen und der Rückseite des Schleppers liegt, wird der Sammelbehälter in seiner Erntegutaufnahmestellung gehalten, auch wenn die Verriegelung des Sammelbehälters noch nicht erfolgt ist. Da der vertikale Abstand des Massenmittelpunktes des Sammelbehälters zur Anlenkstelle des Sammelbehälters auf dem Rahmen relativ klein ist, genügt ein geringer Kraftbedarf, um den Sammelbehälter nach hinten zu verschwenken und somit den Massenmittelpunkt des Sammelbehälters hinter die Anlenkstelle zu bringen. Hierdurch kann die Bedienungsperson den Sammelbehälter auch im gefüllten Zustand sehr leicht verstellen, da bereits nach einem geringen Stellweg das Eigengewicht des Sammelbehälters als Hebelarm mit Bezug auf die Anlenkstelle des Sammelbehälters wirkt und den Sammelbehälter nach hinten zieht.It is also advantageous that the lever is movably connected to the pawl via a play connection and is articulated via a linkage received in the guide elements below the collecting container to the locking device, which is held in the closed position by a spring that can be tensioned via the lever. In this way, the collecting container can also be locked in its operating position when there is still material between the flap and the container walls, the flap being pulled over the springs in the direction of its closed position. Characterized in that the collecting container is pivotally mounted on the frame projecting backwards from the tractor in such a way that the center of mass of the collecting container in the harvested goods receiving position lies between the articulation point of the collecting container on the frame and the rear of the tractor, the collecting container is held in its harvested goods receiving position, even if the collection container has not yet been locked. Since the vertical distance from the center of mass of the collecting container to the articulation point of the collecting container on the frame is relatively small, a small amount of force is sufficient to pivot the collecting container backwards and thus to bring the center of mass of the collecting container behind the articulation point. As a result, the operator can very easily adjust the collecting container even when it is full, since after a short travel the weight of the collecting container acts as a lever arm with reference to the articulation point of the collecting container and pulls the collecting container backwards.

In weiterer Ausgestaltung der Erfindung wird vorgeschlagen, daß an dem am Sammelbehälter in dessen oberen Bereich angeschlossenen Hebel das obere Ende eines vertikal verlaufenden Gestänges angreift, das in seinem unteren Bereich einen Führungsbolzen aufweist, der in einer länglichen Öffnung in der Klinke verschiebbar aufgenommen ist, wobei das untere Ende des Gestänges an das unterhalb des Sammelbehälters horizontal verlaufende Gestänge angeschlossen ist. Hierdurch wird erreicht, daß die Klappe bereits entriegelt wird, wenn der Sammelbehälter in Betriebsstellung noch verriegelt ist.In a further embodiment of the invention it is proposed that the upper end of a vertically extending rod engages the lever connected to the collecting container in its upper region, which has in its lower region a guide pin which is slidably received in an elongated opening in the pawl, whereby the lower end of the linkage is connected to the linkage running horizontally below the collecting container. This ensures that the flap is already unlocked when the collection container is still locked in the operating position.

Vorteilhaft ist es ferner, daß das untere Ende des Gestänges an einem am Sammelbehälter gelagerten Hebelgestänge angreift, das einen Gelenkbolzen aufweist, der in einem Längsschlitz im horizontal verlaufenden Gestänge verschiebbar aufgenommen ist, wobei die Verriegelungsvorrichtung abgewinkelte Schenkel aufweist, die einenends mit dem horizontal verlaufenden Gestänge gelenkig verbunden sind und anderenends an der Verriegelungslasche angreifen.It is also advantageous that the lower end of the linkage engages on a lever linkage mounted on the collecting container, which has a hinge pin which is slidably received in a longitudinal slot in the horizontally extending linkage, the locking device having angled legs that end with the horizontally extending linkage are articulated and at the other end they engage the locking tab.

Das Ver- und Entriegeln der Klappe kann in einfacher Weise in Abhängigkeit der Bewegung des Gestänges dann durchgeführt werden, wenn unterhalb des Bodens des Sammelbehälters mindestens ein Führungselement angeordnet ist, auf dem der vordere an das horizontale Gestänge angeschlossene Teil der Schenkel der Verriegelungsvorrichtung derart geführt ist, daß in der die Klappe arretierenden Stellung der andere Teil der Schenkel der Verriegelungsvorrichtung an die Unterseite des Sammelbehälters heranschwenkbar und die Verriegelungslasche gegen die Klappe zur Anlage bringbar ist. Somit bewirkt das Führungselement eine Führung der abgewinkelten Schenkel derart, daß bei der Rückwärtsbewegung des Gestänges die Schenkel mit der Verriegelungslasche um ihre Anlenkstelle nach rückwärts und unten klappen und dabei die Klappe freigeben.The flap can be locked and unlocked in a simple manner depending on the movement of the linkage if at least one guide element is arranged below the bottom of the collecting container, on which the front part of the legs of the locking device connected to the horizontal linkage is guided in this way that that in the locking position of the flap the other part of the legs of the locking device can be pivoted to the underside of the collecting container and the locking tab can be brought into contact with the flap. Thus, the guide element guides the angled legs in such a way that when the linkage moves backwards, the legs with the locking tab fold back and down about their articulation point and thereby release the flap.

Da der Sammelbehälter nach einem anfänglichen leichten Schwenken selbsttätig in seine Entleerungsstellung kippt, kann, um die Bedienungsperson zu schonen, erfindungsgemäß vorgesehen werden, daß zwischen dem Rahmen und dem Sammelbehälter ein Dämpfungsglied angeordnet ist. Zweckmäßig kann die Klinke einen nach oben offenen Haken aufweisen, der in die am Rahmen vorgesehene Lasche einrastbar ist.Since the collecting container automatically tilts into its emptying position after an initial slight pivoting, it can be provided according to the invention, in order to protect the operator, that an attenuator is arranged between the frame and the collecting container. The pawl can expediently have a hook which is open at the top and which can be snapped into the tab provided on the frame.

Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen näher erläutert. Es zeigt:

  • Fig. 1 einen Schlepper für die Rasenpflege mit einer Mähwerksvorrichtung und angebautem Sammelbehälter in Seitenansicht,
  • Fig. 2 eine Ansicht nach der Linie 2 - 2 gemäß Fig. 1,
  • Fig. 3 den Sammelbehälter in seiner Betriebsstellung,
  • Fig. 4 den Sammelbehälter in seiner Entleerungsstellung,
  • Fig. 5 eine Ansicht nach der Linie 5 - 5 gemäß Fig. 3.
The invention is explained in more detail below with the aid of drawings which illustrate only one embodiment. It shows:
  • 1 a tractor for lawn care with a mower device and attached collecting container in side view,
  • 2 is a view along the line 2 - 2 of FIG. 1,
  • 3 the collecting container in its operating position,
  • 4 the collecting container in its emptying position,
  • 5 is a view along the line 5 - 5 of FIG. 3rd

In der Zeichnung ist mit 10 ein Schlepper für die Rasenpflege bezeichnet, der mit einer Schneidwerksvorrichtung 12 und einem Rahmen 14 ausgerüstet ist, der lösbar an der Rückseite des Schleppers angeschlossen ist und einen Sammelbehälter 16 aufweist. Der Rahmen 14 weist einen oberen und einen unteren Querträger 18 und 20 auf, die durch vertikal verlaufende rechte und linke und einen mittleren Träger 22, 24 und 26 miteinander verbunden sind. Obere und untere in der Zeichnung nicht dargestellte Laschen sind an die Stirnseiten der Träger 24 und 26 angeschlossen bzw. angeschweißt, wobei die nach vorne in Fahrtrichtung zeigenden Laschen über Kupplungsbolzen mit der Rückseite des Schleppers lösbar verbunden sind. Eine nach hinten gerichtete, freitragende, winkelförmige Strebe 36 ist mit ihrem unteren Ende an den Träger 24 und den unteren Querträger 20 angeschlossen und nimmt an ihrem freien bzw. hinteren Ende eine Buchse 38 auf. Eine zweite ebenfalls freitragend angeordnete Strebe 40 läuft parallel zur Strebe 38 und besteht aus einer geformten bzw. gebogenen Platte mit einem trapezförmig ausgebildeten und vertikal verlaufenden Teil 42, der frontseitig in einen vertikal verlaufenden Flansch 44 endet, der über Schraubenbolzen an den linken Träger 24 angeschlossen ist. Ein nach hinten geneigt verlaufender Flansch 46 ist an die obere Kante des Teils 42 angeschlossen und erstreckt sich in etwa bis zum hinteren Ende der Strebe 40. Ein weiterer Flansch 47 erstreckt sich nach hinten und oben und ist mit der unteren Kante des Teils 42 verbunden. Der Flansch 47 weist an seinem unteren Ende einen vertikal verlaufenden Flanschteil auf, der über einen Schraubenbolzen mit dem Querträger 20 verbunden ist. Eine zweite Buchse 48 ist an das hintere Ende des Teils 42 angeschlossen und verläuft koaxial zur Buchse 38. Eine Lasche 50 zum Festsetzen des Sammelbehälters 16 besteht aus einer U-förmig ausgebildeten Stange, mit mit ihren Schenkeln an die Unterseite des Querträgers 18 zwischen dem Träger 24 und 26 angeschlossen ist, wobei die nach oben geneigt verlaufenden Teile der Schenkel über einen Steg miteinander verbunden sind.In the drawing, 10 denotes a tractor for lawn care, which is equipped with a cutting device 12 and a frame 14, which is detachably connected to the rear of the tractor and has a collecting container 16. The frame 14 has an upper and a lower cross member 18 and 20, which are connected to each other by vertically extending right and left and a middle support 22, 24 and 26. Upper and lower tabs, not shown in the drawing, are connected or welded to the end faces of the supports 24 and 26, the tabs pointing forward in the direction of travel being releasably connected to the rear of the tractor via coupling bolts. A rearward, self-supporting, angular strut 36 is connected at its lower end to the support 24 and the lower cross member 20 and receives a bush 38 at its free or rear end. A second cantilevered strut 40 runs parallel to the strut 38 and consists of a shaped or bent plate with a trapezoidal and vertically extending part 42 which ends at the front in a vertically extending flange 44 which is connected to the left support 24 by means of screw bolts is. A backward sloping flange 46 is connected to the upper edge of part 42 and extends approximately to the rear end of strut 40. Another flange 47 extends rearward and upward and is connected to the lower edge of part 42. The flange 47 has at its lower end a vertically running flange part which is connected to the cross member 20 by means of a screw bolt. A second socket 48 is connected to the rear end of the part 42 and extends coaxially to the socket 38. A tab 50 for fixing the collecting container 16 consists of a U-shaped rod, with its legs on the underside of the cross member 18 between the carrier 24 and 26 is connected, the upwardly inclined parts of the legs being connected to one another via a web.

Der Sammelbehälter 16 besteht aus einem Gehäuseteil 52 aus Plastikmaterial und ist aus einer Vorderseite 54, einer oberen Wand 56, einem Boden 58 sowie rechten und linken Seitenwänden 60 und 62 gebildet. Die obere Wand, der Boden und die gegenüberliegenden Seitenwände bilden gemeinsam eine Öffnung 64 an der Rückseite des Sammelbehälters 16. Nahe der Öffnung 64 befindet sich eine ganz um den Sammelbehälter 16 umlaufende Ringnut 66, in der ein rohrförmiges Metallband 68 zur Versteifung des Sammelbehälters 16 eingelassen ist. Die Öffnung 64 wird über eine vertikal verlaufende, schwenkbar am Sammelbehälter 16 angeschlossene Klappe 70 verschlossen, die hierzu über in der Zeichnung nicht dargestellte Scharniere mit der oberen Wand verbunden ist und von einer den Sammelbehälter 16 verschließenden Stellung (Fig. 1) in eine die Öffnung freigebende Stellung (siehe gestrichelte Linien in Fig. 1) verschwenkbar ist.The collecting container 16 consists of a housing part 52 made of plastic material and is formed from a front side 54, an upper wall 56, a bottom 58 and right and left side walls 60 and 62. The upper wall, the bottom and the opposite side walls together form an opening 64 at the rear of the collecting container 16. Near the opening 64 there is an annular groove 66 which runs all the way around the collecting container 16 and in which a tubular metal band 68 is inserted to stiffen the collecting container 16 is. The opening 64 is closed by a vertically extending flap 70 pivotally connected to the collecting container 16, which is connected to the upper wall via hinges (not shown in the drawing) and from a position closing the collecting container 16 (FIG. 1) into an opening releasing position (see dashed lines in Fig. 1) is pivotable.

Der Gehäuseteil 52 wird von dem Rahmen 14 mittels rechter und linker Halterungen 72 und 74 aufgenommen. Eine jede Halterung 72 und 74 besteht aus einem Kanalteil, der aus zwei vertikal verlaufenden Flanschen 76, die, wie aus Fig. 3 hervorgeht, in der Seitenansicht dreieckförmig ausgebildet sind, und aus einem Stegteil gebildet ist, der flach gegen die Unterseite des Bodens 58 des Sammelbehälters 16 anliegt. An jeden Stegteil der beiden Flansche 76 ist eine in etwa vertikal verlaufende Halterung 78 (siehe Fig. 3 und 4) angeschlossen, die mit einem Wandteil 80 in einer Ausnehmung 81 befestigt ist, die im unteren vorderen Bereich der Vorderseite 54 des Sammelbehälters 16 vorgesehen ist.The housing part 52 is received by the frame 14 by means of right and left brackets 72 and 74. Each holder 72 and 74 consists of a channel part which is formed from two vertically extending flanges 76 which, as can be seen from FIG. 3, are triangular in side view, and from a web part which is flat against the underside of the bottom 58 of the collecting container 16 is present. An approximately vertically extending holder 78 (see FIGS. 3 and 4) is connected to each web part of the two flanges 76 and is fastened with a wall part 80 in a recess 81, which is provided in the lower front area of the front side 54 of the collecting container 16 .

In den Flanschen 76 sind untereinander fluchtende Bohrungen vorgesehen, die etwas hinter der vertikal verlaufenden Ebene vorgesehen sind, die durch den Massenmittelpunkt des Sammelbehälters 16 verläuft, wenn sich dieser in einer vertikal verlaufenden Stellung gemäß Fig. 3 befindet. Die Streben 36 und 40 befinden sich außerhalb der Halterungen 72 und 74, und ein Gestänge bzw. eine Achse 82 ist in den entsprechenden in den Halterungen 72 und 74 vorgesehenen Bohrungen und in den Buchsen 38 und 48 aufgenommen, die an den Streben 36 und 40 angeordnet sind. Somit läßt sich der Sammelbehälter 16 beispielsweise aus der Stellung gemäß Fig. 3 in eine Stellung gemäß Fig. 4 verschwenken, in der das Erntegut über die Offnung 64 treten kann.In the flanges 76, mutually aligned bores are provided, which are provided somewhat behind the vertical plane that runs through the center of mass of the collecting container 16 when the latter is in a vertical position according to FIG. 3. The struts 36 and 40 are located outside of the brackets 72 and 74, and a linkage or axis 82 is received in the corresponding bores provided in the brackets 72 and 74 and in the bushings 38 and 48, which on the struts 36 and 40 are arranged. The collecting container 16 can thus be pivoted, for example, from the position according to FIG. 3 into a position according to FIG. 4, in which the crop can pass through the opening 64.

Der Sammelbehälter 16 wird über ein Gebläse 83 befüllt, das am rechten Ende des Rahmens 14 vorgesehen ist und dessen Einlaßöffnung mit dem Auslaß eines Förderkanals 84 in Verbindung steht, der an das Gehäuse der Schneidwerksvorrichtung 12 angeschlossen ist. Ein Auslaßkanal 86 steht über einen oberen Krümmer 87 mit einer im oberen Teil des Sammelbehälters 16 vorgesehenen Einlaßöffnung 85 in Verbindung. Die Einlaßöffnung 85 ist so ausgebildet und angeordnet, daß der Sammelbehälter 16 in die in gestrichelten Linien dargestellte Entleerungsstellung verschwenkt werden kann, ohne daß eine Beeinträchtigung an den einzelnen Kanälen des Gebläses 83 auftritt. Eine Ringdichtung 88, beispielsweise aus Weichgummi, ist auf dem Auslaßkanal 86 vorgesehen, so daß der Auslaßkanal gegenüber der Einlaßöffnung 85 einwandfrei abgedichtet werden kann. Eine Halterung 89 ist in das obere Ende des rechten Trägers 22 des Rahmens 14 eingesteckt, und an das obere Ende der Halterung 89 ist das hintere Ende des Krümmers 87 des Auslaßkanals 86 angeschlossen, so daß dieser zusätzlich abgestützt ist.The collecting container 16 is filled via a blower 83 which is provided at the right end of the frame 14 and whose inlet opening is connected to the outlet of a conveying channel 84 which is connected to the housing of the cutting device 12. An outlet duct 86 communicates via an upper elbow 87 with an inlet opening 85 provided in the upper part of the collecting container 16. The inlet opening 85 is designed and arranged such that the collecting container 16 pivots into the emptying position shown in dashed lines can be without impairment of the individual channels of the blower 83 occurs. An annular seal 88, for example made of soft rubber, is provided on the outlet channel 86, so that the outlet channel can be properly sealed off from the inlet opening 85. A bracket 89 is inserted into the upper end of the right bracket 22 of the frame 14, and to the upper end of the bracket 89, the rear end of the elbow 87 of the outlet duct 86 is connected so that it is additionally supported.

Das Gebläse 83 wird über eine in der Zeichnung nicht dargestellte Antriebsvorrichtung des Schleppers 10 angetrieben. Das gleiche gilt auch für die Schneidwerkskörper der Schneidwerksvorrichtung 12, über die das Erntegut abgetrennt und über das Gebläse 83 dem Sammelbehälter 16 zugeführt wird.The fan 83 is driven by a drive device of the tractor 10, not shown in the drawing. The same also applies to the cutter body of the cutter device 12, via which the crop is separated and fed to the collecting container 16 via the blower 83.

Eine Verriegelungsvorrichtung 90 dient zum Halten des Sammelbehälters 16 in seiner Füllstellung und zum Verschließen der Klappe 70 in ihrer Stellung gemäß Fig. 3 (Schließstellung). Die Verriegelungsvorrichtung 90 weist obere und untere Halterungen 91 und 92 auf, die mit ihren Schenkeln an eine Außenseite 93 einer Einbuchtung 94 im Sammelbehälter 16 angeschlossen sind. Die Einbuchtung 94 erstreckt sich vertikal zwischen der oberen Wand 56 und der Ausnehmung 81, die ebenfalls an der Vorderwand des Sammelbehälters 16 vorgesehen ist. Die Einbuchtung 94 dient zur Aufnahme der Verriegelungsvorrichtung 90 und weist den Vorteil auf, den Sammelbehälter 16 näher an den Schlepper 10 anzubauen, so daß das Gewicht des Sammelbehälters mit Bezug auf den Schlepper 10 mehr nach vorne verlagert wird und somit entsprechende Gegengewichte an der Stirnseite des Schleppers vermieden bzw. gering gehalten werden können. Die obere Halterung 91 befindet sich etwa in Schulterhöhe einer Bedienungsperson von durchschnittlicher Größe, wenn diese auf dem Schlepper 10 Platz genommen hat, und weist einen zweiarmigen Hebel 95 auf, der mittels eines Gelenkbolzens 96 an die Halterung 91 angeschlossen ist. An dem äußeren freien Ende des einen Hebelarms des Hebels 95 befindet sich eine seitlich herausstehende Stellvorrichtung 98, und der andere Hebelarm erstreckt sich in Richtung der Einbuchtung 94. An das äußere Ende des anderen Hebelarms des Hebels 95 ist ein Gestänge 100 angeschlossen, das hierzu an seinem oberen Ende mit einem rechtwinklig ausgebildeten Ende 102 versehen ist, das an dem Hebel 95 gelenkig angreift. Eine Klinke 104 ist mit der unteren Halterung 92 über einen Bolzen 106 gelenkig verbunden und weist einen nach oben offenen Haken 108 auf, der in die Öffnung der Lasche 50 einrastbar ist und hierzu über das Gestänge 100 entsprechend verstellt werden kann. In der Klinke 104 ist eine tropfenförmige Öffnung 110 vorgesehen, die Teil einer Spielverbindung ist und zur Aufnahme eines mit dem Gestänge 100 verbundenen Führungsbolzens 112 dient. Befindet sich der Hebel 95 in seiner in Fig. 3 dargestellten Verriegelungsstellung, so befindet sich der Führungsbolzen 112 am oberen Ende der Öffnung 110. Die Klinke 104 wird über eine Feder 114 im Uhrzeigerdrehsinn vorgespannt. Das Gestänge 100 erstreckt sich über den Führungsbolzen 112 nach unten und weist eine Anschlußöse 116 auf, die auf das untere Ende des Gestänges 100 aufgeschraubt ist und über einen Gelenkbolzen 118 an einen Hebelarm 120 gelenkig angeschlossen ist, der an eine Achse 122 angeschlossen ist, deren beide Enden in Buchsen 124 und 126 aufgenommen sind. Die Buchsen 124 und 126 sind in sich nach vorne erstreckenden Halterungen 128 und 130 aufgenommen, die mit ihren hinteren Enden an die Halterungen 78 angeschlossen sind. Innerhalb der Ausnehmung 81 sind auf der Achse 122 endseitig untereinander fluchtende Hebel 132 und 134 angeordnet, die mit entsprechenden Gestängen 136 und 138 verbunden sind. Die Hebel 132 und 134 und die Gestänge 136 und 138 liegen innerhalb der einen Gehäusekanal bildenden Schenkel der Halterungen 72 und 74. Das vordere Ende eines jeden Gestänges 136 und 138 weist einen Längsschlitz 140 auf, der zur Aufnahme eines Gelenkbolzens 144 dient und der die Gestänge 136 und 138 mit den entsprechenden Hebeln 132 und 134 verbindet. Eine U-förmig ausgebildete Verriegelungsvorrichtung 148 besteht aus einer Stange mit rechten und linken Schenkeln 150 und 152, die frontseitig abgewinkelte Enden 154 und 156 (Fig. 5) aufweisen, die gelenkig an die Gestänge 136 und 138 angeschlossen sind. Die Schenkel 150 und 152 liegen auf Führungselementen 158 und 160 auf, die aus relativ kurzen auf die Unterkanten der Flansche 76 angeschweißten Trägern bestehen und hinter der Achse 82 liegen. Die Schenkel 150 und 152 sind bei 162 und 164 unmittelbar vor den Führungselementen 158 und 160 abgebogen (siehe Fig. 4), wenn der Hebel 95 die in Fig. 3 in ausgezogenen Linien dargestellte Stellung einnimmt, so daß sich dann die Schenkel der Verriegelungsvorrichtung 148 von ihren vorderen Enden nach hinten und unten bis zu den Stellen 162,164 erstrecken und von dort aus in horizontaler Richtung bis zu einer Verriegelungslasche 168, die gegen die Rückseite 170 der Klappe 70 anliegt, wobei die Anlagestelle etwas oberhalb der Schenkel der Verriegelungsvorrichtung 148 liegt. Je eine Feder 172, 174 befindet sich seitlich der Gestänge 136 und 138 und ist einenends an das jeweilige Ende 154, 156 und anderenends an den entsprechenden Gelenkbolzen 144 angeschlossen, der in dem als Spielverbindung ausgebildeten Längsschlitz 140 aufgenommen ist. Somit werden die Gestänge 136 und 138 und die Verriegelungsvorrichtung 148 nach vorne gezogen und die Klappe 70 in ihrer Schließstellung gehalten. Die Längsschlitze 140 erlauben ein Feststellen der Klappe auch dann, wenn sich noch etwas Erntegut in dem Spalt zwischen der Rückseite des Sammelbehälters 16 und der Klappe 70 befinden sollte, das ein vollständiges Verschließen der Klappe verhindert.A locking device 90 is used to hold the collecting container 16 in its filling position and to close the flap 70 in its position according to FIG. 3 (closed position). The locking device 90 has upper and lower brackets 91 and 92, which are connected with their legs to an outer side 93 of an indentation 94 in the collecting container 16. The indentation 94 extends vertically between the upper wall 56 and the recess 81, which is also provided on the front wall of the collecting container 16. The indentation 94 serves to receive the locking device 90 and has the advantage of mounting the collecting container 16 closer to the tractor 10, so that the weight of the collecting container with respect to the tractor 10 is shifted more forward and thus corresponding counterweights on the front side of the Can be avoided or kept to a minimum. The upper bracket 91 is located approximately at the shoulder height of an average-sized operator when he has taken a seat on the tractor 10 and has a two-armed lever 95 which is connected to the bracket 91 by means of a hinge pin 96. At the outer free end of one lever arm of the lever 95 there is a laterally protruding actuating device 98, and the other lever arm extends in the direction of the indentation 94. A linkage 100 is connected to the outer end of the other lever arm of the lever 95, for this purpose its upper end is provided with a right-angled end 102 which hinges on the lever 95. A pawl 104 is connected to the lower bracket 92 in an articulated manner by means of a bolt 106 and has an upwardly open hook 108 which can be snapped into the opening of the tab 50 and for this purpose can be adjusted accordingly via the linkage 100. A drop-shaped opening 110 is provided in the pawl 104, which is part of a play connection and serves to receive a guide bolt 112 connected to the linkage 100. If the lever 95 is in its locking position shown in FIG. 3, the guide pin 112 is located at the upper end of the opening 110. The pawl 104 is pretensioned clockwise by a spring 114. The linkage 100 extends downwards over the guide pin 112 and has a connecting eye 116 which is screwed onto the lower end of the linkage 100 and is articulated via a hinge pin 118 to a lever arm 120 which is connected to an axis 122, the axis of which both ends are received in sockets 124 and 126. The bushings 124 and 126 are received in forwardly extending brackets 128 and 130 which are connected at their rear ends to the brackets 78. Within the recess 81, axially aligned levers 132 and 134 are arranged on the end 122, which are connected to corresponding linkages 136 and 138. The levers 132 and 134 and the linkages 136 and 138 lie within the legs of the brackets 72 and 74 which form a housing channel. The front end of each linkage 136 and 138 has a longitudinal slot 140 which serves to receive a hinge pin 144 and which the linkages 136 and 138 connects to the corresponding levers 132 and 134. A U-shaped locking device 148 consists of a rod with right and left legs 150 and 152, which have angled ends 154 and 156 at the front (FIG. 5), which are connected in an articulated manner to the rods 136 and 138. The legs 150 and 152 rest on guide elements 158 and 160, which consist of relatively short supports welded onto the lower edges of the flanges 76 and lie behind the axis 82. The legs 150 and 152 are bent at 162 and 164 immediately in front of the guide elements 158 and 160 (see FIG. 4) when the lever 95 assumes the position shown in solid lines in FIG. 3, so that the legs of the locking device 148 extend from their front ends backwards and downwards to the points 162, 164 and from there in the horizontal direction to a locking tab 168 which bears against the rear 170 of the flap 70, the contact point being located somewhat above the legs of the locking device 148. A spring 172, 174 is located on each side of the linkage 136 and 138 and is connected at one end to the respective end 154, 156 and at the other end to the corresponding hinge pin 144, which is received in the longitudinal slot 140 designed as a play connection. Thus, the linkages 136 and 138 and the locking device 148 are pulled forward and the flap 70 is held in its closed position. The longitudinal slots 140 allow the flap to be locked even if there is still some crop in the gap should be between the rear of the collection container 16 and the flap 70, which prevents the flap from being completely closed.

Soll die Klappe 70 zum Entleeren des Erntegutes aus dem Sammelbehälter 16 geöffnet werden, so muß der Hebel 95 von seiner Verriegelungsstellung in eine Entriegelungsstellung verschwenkt werden (siehe Fig. 4). Hierdurch wird das Gestänge 100 nach unten bewegt und eine Verschwenkung der Achse 122 im entgegengesetzten Uhrzeigerdrehsinn herbeigeführt (mit Bezug auf Fig. 4). Die anfängliche Abwärtsverstellung des Gestänges 100 behindert nicht die Klinke 104, da der Führungsbolzen 112 sich zwischen der oberen und unteren Begrenzung der Öffnung 110 befindet. Die Drehung der Achse 122 im entgegengesetzten Uhrzeigerdrehsinn bewirkt über die Gelenkbolzen 144 eine Verstellung der Gestänge 136 und 138 sowie der Verriegelungsvorrichtung 148 nach hinten. Durch die Stellung der Verriegelungsvorrichtung 148 nach hinten werden die Schenkel 150 und 152 nach unten und hinten über die Führungselemente 158 und 160 bewegt, und die Verriegelungslasche 168 wird ebenfalls nach unten und hinten bewegt, um somit die Klappe 70 freizugeben. Nähert sich der Hebel 95 der Stellung, in der der Sammelbehälter 16 entleert werden kann, so kommt der Führungsbolzen 112 gegen die untere Begrenzung der Öffnung 110 zur Anlage und schwenkt dadurch die Klinke 104 im entgegengesetzten Uhrzeigerdrehsinn um den Bolzen 106. In diesem Augenblick kann die Bedienungsperson die Stellvorrichtung 98 nach vorne ziehen, so daß der Haken 108 leicht aus der Lasche 50 austritt. Hat der Hebel 95 seine Entriegelungsstellung erreicht, so wird durch weiteres Anheben des Hebels der Sammelbehälter leicht nach hinten geschwenkt, so daß der Schwerpunkt des Sammelbehälters sich mit Bezug auf die Achse 82 des Sammelbehälters nach hinten verlagert und der Sammelbehälter 16 dann ohne zusätzliche Hilfe der Bedienungsperson in seine endgültige Entleerungsstellung verschwenken kann. Um jedoch zu verhindern, daß die Bedienungsperson aufgrund der Bewegung des vollen Sammelbehälters, wenn dieser sich über seinen Schwerpunkt hinaus bewegt, einen Schlag bekommt, ist ein Dämpfungsglied 176, beispielsweise ein Hydraulikzylinder, vorgesehen, der einenends über einen Gelenkbolzen 178 an den Teil 42 und anderenends über einen Gelenkbolzen 180 an die Halterung 74 angeschlossen ist.If the flap 70 is to be opened for emptying the crop from the collecting container 16, the lever 95 must be pivoted from its locking position into an unlocking position (see FIG. 4). As a result, the linkage 100 is moved downward and the axis 122 is pivoted in the counterclockwise direction (with reference to FIG. 4). The initial downward movement of the linkage 100 does not hinder the pawl 104 because the guide pin 112 is between the upper and lower limits of the opening 110. The rotation of the axis 122 in the counterclockwise direction causes the linkages 136 and 138 and the locking device 148 to be moved rearward via the hinge pins 144. With the locking device 148 in the rearward position, the legs 150 and 152 are moved downward and rearward via the guide elements 158 and 160, and the locking tab 168 is also moved downward and rearward, thus releasing the flap 70. When the lever 95 approaches the position in which the collecting container 16 can be emptied, the guide pin 112 comes to bear against the lower limit of the opening 110 and thereby pivots the pawl 104 in the counterclockwise direction about the pin 106. At this moment the Pull the actuator 98 forward so that the hook 108 easily exits the tab 50. When the lever 95 has reached its unlocking position, the collecting container is pivoted slightly backwards by further lifting the lever, so that the center of gravity of the collecting container moves rearward with respect to the axis 82 of the collecting container and the collecting container 16 then without additional help from the operator can pivot into its final emptying position. However, in order to prevent the operator from receiving a blow due to the movement of the full collecting container when it moves beyond its center of gravity, an attenuator 176, for example a hydraulic cylinder, is provided, which at one end via a hinge pin 178 to the part 42 and at the other end is connected to the bracket 74 via a hinge pin 180.

Claims (11)

1. A closing and fastening device for a collecting container (16) which can be connected to a tractor (10) and which at its rear has a flap (70) which is pivotable about an axis arranged in its upper region between a closed position and an open position and which can he held in the closed position by a first locking device (148) which can he actuated by means of a control device (98) arranged on the collecting container (16), wherein the collecting container (16) can he fastened by means of a second locking device in its receiving position and is mounted pivotably at its underside on a frame (14) characterised in that the control device (98) is in the form of a lever (95) wich is mounted pivotably on the collecting container (16) and which serves for pivotal movement of the collecting container (16) and which at the same time is connected by way of links (100, 136, 138) to a latch (104) which is mounted pivotably on the collecting container (16) for arresting the collecting container (16) in the crop material receiving position, and to a closure portion which is in the form of a locking her (168) for fastening the flap (170) also in the crop material receiving position.
2. A device according to claim 1 characterised in that it has a frame (42) which is arranged in cantilever relationship on a tractor (10), that the latch (104) can he brought into engagement with a her (50) on the frame (14) and that the locking her (168) together with the latch (104) can he put into at least two positions wherein in one position the locking her (168) is held in the closure position and in the other position pivotal movement of the flap (70) into the open position is possible.
3. A device according to claim 1 or claim 2 characterised in that the flap (70) can he arrested in the region of its lower edge by way of the locking her (168).
4. A device according to one or are of the preceding claims characterised in that the lever (95) is movably connected to the latch (104) by way of a connection with play therein and is pivotally connected to the locking device (148) by way of a linkage (136, 138) which is accommodated beneath the collecting container (16) in guide elements (158), the locking device (148) being held in the closed position by way of a spring (174, 172) which can he tensioned by way of the lever (95).
5. A device according to one or more of the preceding claims characterised in that the collecting container (16) is pivotably mounted on the frame (14) which projects regardly from the tractor (10), in such a way that the centre of mass of the collecting container (16) in the crop material receiving position is between the pivotal mounting of the collecting container (16) to the frame (14) and the rear of the tractor (10).
6. A device according to one or more of the preceding claims characterised in that the lever (95) which is connected to the collecting container (16) in the upper region thereof is engaged by the upper end of a vertically extending linkage (100) which in its lower region has a guide pin (112) which is slidably accomodated in an elongate opening (110) in the latch (104), wherein the lower end of the linkage (100) is connected to the linkage (136) extending horizontally beneath the collecting container (16).
7. A device according to one or more of the preceding claims characterised in that the lower end of the linkage (100) engages a lever linkage (120,122,134) which is mounted on the collecting container (16) and which has a pivot pin (144) which is slidably accomodated in a longitudinal slot (140) in the horizontally extending linkage (136).
8. A device according to one or more of the preceding claims characterised in that the locking device (148) has bent-over limbs (150, 152) which at one end are pivotally connected to the horizontally extending linkage (136, 138) and at the other end engage the locking bar (168).
9. A device according to claim 8 characterised in that disposed beneath the bottom of the collecting container (16) is at least one guide element (158, 160) on which the front part, which is connected to the horizontal linkage (136, 138), of the limbs (150, 152) of the locking device (148) is guided in such a way that in the position of arresting the flap (70), the other part of the limbs of the locking device (148) can he pivoted towards the underside of the collecting container (16) and the locking bar (168) can be brought into contact against the flap (70).
10. A device according to one or more of the preceding claims characterised in that a damping member (176) is arranged between the frame (42) and the collecting container (16).
11. A device according to one or more of the preceding claims characterised in that the latch (104) has an upwardly open hook (108) which can he engaged into the her (50) provided on the frame (42).
EP84107732A 1983-07-08 1984-07-04 Closing and locking device for a collector pivotally mounted on a tractor Expired EP0131245B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US512097 1983-07-08
US06/512,097 US4476668A (en) 1983-07-08 1983-07-08 Tilt and dump grass collection box and box latch and door closure mechanism therefor

Publications (2)

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EP0131245A1 EP0131245A1 (en) 1985-01-16
EP0131245B1 true EP0131245B1 (en) 1989-01-04

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EP84107732A Expired EP0131245B1 (en) 1983-07-08 1984-07-04 Closing and locking device for a collector pivotally mounted on a tractor

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US (1) US4476668A (en)
EP (1) EP0131245B1 (en)
JP (1) JPS6041412A (en)
CA (1) CA1227342A (en)
DE (1) DE3475863D1 (en)

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Publication number Publication date
DE3475863D1 (en) 1989-02-09
CA1227342A (en) 1987-09-29
EP0131245A1 (en) 1985-01-16
JPS6041412A (en) 1985-03-05
US4476668A (en) 1984-10-16

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